<template>
	<view class="preview">
		<swiper circular :current="currentIndex" 
		@change="swiperChange">
			<swiper-item v-for="(item,index) in classList" :key="item._id">
				<image v-if="readImgs.includes(index)" @click="maskChange" :src="item.picurl" mode="aspectFill"></image>
			</swiper-item>
		</swiper>
		
		<view class="mask" v-if="maskState">
			<view class="goBack" @click="goBack"
			:style="{top:getStatusBarHeight()+'px'}">
				<uni-icons type="back" color="#fff" size="20"></uni-icons>
			</view>
			<view class="count">{{currentIndex + 1}}/{{classList.length}}</view>
			<view class="time">
				<uni-dateformat :date="new Date()" format="hh:ss"></uni-dateformat>
			</view>
			<view class="date">
				<uni-dateformat :date="new Date()" format="MM月dd日"></uni-dateformat>
			</view>
			<view class="footer">
				<view class="box" @click="clickInfo">
					<uni-icons type="info" size="28"></uni-icons>
					<view class="text">信息</view>
				</view>
				<view class="box" @click="clickScore">
					<uni-icons type="star" size="28"></uni-icons>
					<view class="text">{{currentInfo?.score}}分</view>
				</view>
				<view class="box">
					<uni-icons type="download" size="28" @click="clickDownload"></uni-icons>
					<view class="text">下载</view>
				</view>
			</view>
		</view>
		
		<uni-popup ref="infoPopup" type="bottom">
			<view class="infoPopup">
				<view class="popHeader">
					<view></view>
					<view class="title">壁纸信息</view>
					<view class="close" @click="clickInfoClose">
						<uni-icons type="closeempty" size="18" color="#999"></uni-icons>
					</view>
				</view>
				<scroll-view scroll-y>
					<view class="content">
						<view class="row">
							<view class="label">壁纸ID：</view>
							<text selectable class="value">{{currentInfo._id}}</text>
						</view>
						
						<!-- <view class="row">
							<view class="label">分类：</view>
							<text class="value class">明星美女</text>
						</view> -->
						
						<view class="row">
							<view class="label">发布者：</view>
							<text class="value">{{currentInfo.nickname}}</text>
						</view>
						
						<view class="row">
							<view class="label">评分：</view>
							<view class="value roteBox">
								<uni-rate readonly touchable :value="currentInfo?.score" size="16"></uni-rate>
								<text class="score">{{currentInfo?.score}}分</text>
							</view>
						</view>
						<view class="row">
							<view class="label">摘要：</view>
							<text selectable class="value">{{currentInfo.description}}</text>
						</view>
						
						<view class="row">
							<view class="label">标签：</view>
							<view class="value tabs">
								<view class="tab" v-for="item in currentInfo.tabs || []" :key="item">
									{{item}}
								</view>
							</view>
						</view>
						
						<view class="copyright">
							声明：项目非商用
						</view>
						
						<view class="safe-area-inset-bottom">
							
						</view>
					</view>
				</scroll-view>
			</view>
		</uni-popup>
		
		<uni-popup ref="scorePopup" :is-mask-click="false">
			<view class="scorePopup">
				<view class="popHeader">
					<view></view>
					<view class="title">{{isScore?'评分过了~':'壁纸评分'}}</view>
					<view class="close" @click="clickScoreClose">
						<uni-icons type="closeempty" size="18" color="#999"></uni-icons>
					</view>
				</view>
				
				<view class="content">
					<uni-rate v-model="userScore" 
					:disabled="isScore"
					 disabled-color="#ffca3e" allowHalf></uni-rate>
					<text class="text">{{userScore}}分</text>
				</view>
				
				<view class="footer">
					<button @click="submitScore" 
					:disabled="!userScore || isScore" type="default" 
					size="mini" plain>确认评分</button>
				</view>
			</view>
		</uni-popup>
		
	</view>
</template>

<script setup>
	import {ref, computed} from 'vue'
	import {getStatusBarHeight} from "@/utils/system.js"
	import {onLoad,onShareAppMessage,onShareTimeline} from '@dcloudio/uni-app'
	import {apiGetSetupScore, apiWriteDownload, apiDetailWall} from '/api/apis.js'
	
	const maskState = ref(true)
	const infoPopup = ref(null)
	const scorePopup = ref(null)
	const userScore = ref(0)
	const isScore = ref(false)
	const classList = ref([])
	const currentId = ref(undefined)
	const currentIndex = ref(undefined)
	const readImgs = ref([])
	
	const storgClaassList = uni.getStorageSync("storgClassList") || []
	classList.value = storgClaassList.map(item=>replacePic(item))
	
	function replacePic(item = {}){
		return {
			...item,
			picurl:item.smallPicurl.replace("_small.webp",".jpg")
		}
	}
	
	onLoad(async e=>{
		currentId.value = e.id;
		if(e.type == 'share'){
			let res = await apiDetailWall({id:e.id})
			classList.value = res.data.map(item=>replacePic(item))
		}
		currentIndex.value = classList.value.findIndex(item=>item._id == currentId.value)
		readImgsFun()
	})
  	const currentInfo = computed(()=>classList.value[currentIndex.value] || {})

	const swiperChange = (e) =>{
		currentIndex.value = e.detail.current
		readImgsFun()
	}
	const maskChange = () =>{
		maskState.value = !maskState.value
	}
	const clickInfo = () =>{
		infoPopup.value.open()
	}
	const clickInfoClose = () =>{
		infoPopup.value.close()
	}
	const clickScore = ()=>{
		if(currentInfo.value.userScore){
			isScore.value = true
			userScore.value = currentInfo.value.userScore
		}
		scorePopup.value.open()
	}
	const clickScoreClose = ()=>{
		scorePopup.value.close()
		userScore.value = 0
		isScore.value = false
	}
	const submitScore = async()=>{
		uni.showLoading({
			title:"加载中..."
		})
		let {classid,_id:wallId} = currentInfo.value
		let res = await apiGetSetupScore({
			classid,
			wallId,
			userScore: userScore.value
		})
		uni.hideLoading()
		if(res.errCode === 0){
			uni.showToast({
				title: "评分成功",
				icon:'none'
			})
			classList.value[currentIndex.value].userScore = userScore.value
			uni.setStorageSync("storgClassList", classList.value)
			clickScoreClose()
		}
	}
	const goBack = () =>{
		uni.navigateBack({
			success() {
				
			},
			fail() {
				uni.reLaunch({
					url:"/pages/index/index"
				})
			}
		})
	}
	
	function readImgsFun(){
		readImgs.value.push(
			currentIndex.value<=0? classList.value.length -1 : currentIndex.value -1,
			currentIndex.value,
			currentIndex.value>=classList.value.length -1 ? 0 :currentIndex.value + 1
		)
		readImgs.value = [...new Set(readImgs.value)]
	}
	
	onShareAppMessage(()=>{
		return {
			title:"壁纸大图",
			path:"/pages/preview/preview?id=" + currentId.value + "&type=share"
		}
	})
	
	onShareTimeline(()=>{
		return {
			title:"壁纸大图~~~",
			query:"id=" + currentId.value + "&type=share"
		}
	})
	
	const clickDownload = async()=>{
		// #ifdef H5
			uni.showModal({
				content: "请长按保存壁纸",
				showCancel: false
			})
		// #endif
		
		// #ifndef H5
			try{
				uni.showLoading({
					title:"下载中...",
					mask:true
				})
				let { classid, _id: wallId } = currentInfo.value;
				let res = await apiWriteDownload({
				  classid,
				  wallId
				});
				if (res.errCode != 0) throw res;
				uni.getImageInfo({
					src:currentInfo.value.picurl,
					success:(res)=>{
						uni.saveImageToPhotosAlbum({
							filePath:res.path,
							success(res) {
								uni.showToast({
								  title: "保存成功，请到相册查看",
								  icon: "none"
								});
							},
							fail(err) {
								if (err.errMsg == 'saveImageToPhotosAlbum:fail cancel') {
									uni.showToast({
										title: '保存失败，请重新点击下载',
										icon: "none"
									})
									return;
								}
								uni.showModal({
									title:"提示",
									content:"需要授权保存相册",
									success(res) {
										if(res.confirm){
											uni.openSetting({
												success: (setting) => {
													if (setting
														.authSetting[
															'scope.writePhotosAlbum'
															]) {
														uni.showToast({
															title: "获取授权成功",
															icon: "none"
														})
													} else {
														uni.showToast({
															title: "获取权限失败",
															icon: "none"
														})
													}
												}
											})
										}
									}
								})
							}						
						})
					},
					complete() {
						uni.hideLoading()
					}
				})						
			}catch(err){
				uni.hideLoading()
			}
		// #endif
	}
</script>

<style lang="scss" scoped>
.preview {
		width: 100%;
		height: 100vh;
		position: relative;

		swiper {
			width: 100%;
			height: 100%;

			image {
				width: 100%;
				height: 100%;
			}
		}

		.mask {
			&>view {
				position: absolute;
				left: 0;
				margin: auto;
				color: #fff;
				right: 0;
				width: fit-content;
			}

			.goBack {
				width: 38px;
				height: 38px;
				background: rgba(0, 0, 0, 0.5);
				left: 30rpx;
				margin-left: 0;
				border-radius: 100px;
				top: 0;
				backdrop-filter: blur(10rpx);
				border: 1rpx solid rgba(255, 255, 255, 0.3);
				display: flex;
				align-items: center;
				justify-content: center;
			}

			.count {
				top: 10vh;
				background: rgba(0, 0, 0, 0.3);
				font-size: 28rpx;
				border-radius: 40rpx;
				padding: 8rpx 28rpx;
				backdrop-filter: blur(10rpx);
			}

			.time {
				font-size: 140rpx;
				top: calc(10vh + 80rpx);
				font-weight: 100;
				line-height: 1em;
				text-shadow: 0 4rpx rgba(0, 0, 0, 0.3);
			}

			.date {
				font-size: 34rpx;
				top: calc(10vh + 230rpx);
				text-shadow: 0 2rpx rgba(0, 0, 0, 0.3);
			}

			.footer {
				background: rgba(255, 255, 255, 0.8);
				bottom: 10vh;
				width: 65vw;
				height: 120rpx;
				border-radius: 120rpx;
				color: #000;
				display: flex;
				justify-content: space-around;
				align-items: center;
				box-shadow: 0 2rpx 0 rgba(0, 0, 0, 0.1);
				backdrop-filter: blur(20rpx);

				.box {
					display: flex;
					flex-direction: column;
					align-items: center;
					justify-content: center;
					padding: 2rpx 12rpx;

					.text {
						font-size: 26rpx;
						color: $text-font-color-2;
					}
				}
			}
		}

		.popHeader {
			display: flex;
			justify-content: space-between;
			align-items: center;

			.title {
				color: $text-font-color-2;
				font-size: 26rpx;
			}

			.close {
				padding: 6rpx;
			}
		}


		.infoPopup {
			background: #fff;
			padding: 30rpx;
			border-radius: 30rpx 30rpx 0 0;
			overflow: hidden;

			scroll-view {
				max-height: 60vh;

				.content {
					.row {
						display: flex;
						padding: 16rpx 0;
						font-size: 32rpx;
						line-height: 1.7em;

						.label {
							color: $text-font-color-3;
							width: 140rpx;
							text-align: right;
							font-size: 30rpx;
						}

						.value {
							flex: 1;
							width: 0;
						}

						.roteBox {
							display: flex;
							align-items: center;

							.score {
								font-size: 26rpx;
								color: $text-font-color-2;
								padding-left: 10rpx;
							}
						}

						.tabs {
							display: flex;
							flex-wrap: wrap;

							.tab {
								border: 1px solid $brand-theme-color;
								color: $brand-theme-color;
								font-size: 22rpx;
								padding: 10rpx 30rpx;
								border-radius: 40rpx;
								line-height: 1em;
								margin: 0 10rpx 10rpx 0;
							}
						}

						.class {
							color: $brand-theme-color;
						}


					}

					.copyright {
						font-size: 28rpx;
						padding: 20rpx;
						background: #F6F6F6;
						color: #666;
						border-radius: 10rpx;
						margin: 20rpx 0;
						line-height: 1.6em;
					}

				}
			}
		}

		.scorePopup {
			background: #fff;
			padding: 30rpx;
			width: 70vw;
			border-radius: 30rpx;

			.content {
				padding: 30rpx 0;
				display: flex;
				justify-content: center;
				align-items: center;

				.text {
					color: #FFCA3E;
					padding-left: 10rpx;
					width: 80rpx;
					line-height: 1em;
					text-align: right;
					font-size: 28rpx;
				}
			}

			.footer {
				padding: 10rpx 0;
				display: flex;
				align-items: center;
				justify-content: center;
			}
		}

	}
</style>
